The stars over Albany are in perfect alignment for some huge, if undue, legislative gains for unions – with New Yorkers paying the price for years to come.

As the Legislature moves toward adjournment on June 23, Gov. Paterson looks to be all that stands between the Empire State and a labor-fueled disaster.

But will he cross swords with union bosses and save the state?

Just two short months ago, the Legislature jumped when the teachers’ union ordered it to deny control of tenure to city Schools Chancellor Joel Klein – and the accidental governor went merrily along.

That was bad enough. But pending bills would cut a wider swath, harming taxpayers, businesses and folks just hoping to keep their jobs.

Here are just a few examples of how labor is angling to stuff its pockets with taxpayer cash:

* One bill would force nonprofits (hospitals, rec centers, colleges) that use tax-exempt funding for construction projects to pay above-market union-level wages – pushing up costs and and killing jobs.

Worse, it would open the door to union-wage requirements at all projects that get public subsidies – defeating the point of such help, of course, and crimping development across the state.

* Another would make it impossible for state and local governments to trim health benefits for public-sector retirees, even if they face severe budget pressure to do so. Private-sector workers should be so lucky.

* Lawmakers are reviewing several bills following disclosures that their projected costs are based on a union-paid actuary’s low-ball estimates. (The New York Times last week reported that the cost to taxpayers of just 11 of 50 bills analyzed by actuary Jonathan Schwartz is some $500 million more than he said.)

Yet that might not be enough to block the legislation, which would lower retirement ages and boost pension benefits for various categories of public employees – costing taxpayers a fortune. Forever.